Table 12 Final available soil N, P2O5 and K2O (kg ha−1) in direct seeded rice with respect to changing sowing dates and weed managing approaches (2 year pooled data).
Treatments | Available N | Available P | Available K |
|---|---|---|---|
Sowing date | |||
D1: 10th of May | 222.02 | 37.41 | 78.98 |
D2: 3rd of June | 235.34 | 41.43 | 98.55 |
SE(m) ± | 0.55 | 0.15 | 1.81 |
CD (p ≤ 0.05) | 1.66 | 0.47 | 5.44 |
Weed management practices | |||
W1: weedy check | 247.47 | 43.89 | 104.17 |
W2: 4 conoweedings (equivalent to weed free) | 218.76 | 35.76 | 78.52 |
W3: bensulfuron methyl + pretilachlor (PE) | 227.61 | 40.06 | 89.01 |
W4: oxyfluorfen (PE) | 232.28 | 41.27 | 92.69 |
W5: bensulfuron methyl + pretilachlor (PE) fb 2, 4-D (PoE) | 221.10 | 37.30 | 82.67 |
W6: oxyfluorfen (PE) fb 2, 4-D (PoE) | 224.85 | 38.24 | 85.54 |
SE(m) ± | 1.03 | 0.33 | 1.66 |
CD (p ≤ 0.05) | 3.06 | 0.99 | 4.90 |
